Finding the Fourth Proportional to 315,978.18, 474,001.83 and 116,394.18

Step by Step Solution

1. Step 1: Write the proportion equation
   315,978.18 : 474,001.83 = 116,394.18 : x
2. Step 2: Convert to fraction form
   315,978.18/474,001.83 = 116,394.18/x
3. Step 3: Cross multiply
   315,978.18x = 474,001.83 × 116,394.18
4. Step 4: Simplify right side
   315,978.18x = 55,171,054,321.35
5. Step 5: Solve for x
   x = 55,171,054,321.35/315,978.18
6. Step 6: Final answer
   x = 174,604.00